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Question Practice

What happens to the direction cosines if the direction of a line is reversed?

Attempt the question, check the explanation, and continue with similar questions to build confidence before exams.

MCQ_SA
CBSE
Class 12
Mathematics
Mathematics Part - II
Three Dimensional Geometry
Question Bank

What happens to the direction ...

Single Answer MCQ
Q-00078289

What happens to the direction cosines if the direction of a line is reversed?

1

They remain unchanged

2

They become their negatives

3

They become their reciprocals

4

They become 0

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Q1.

What are the direction cosines of a line?

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Q2.

If a line makes angles α, β, and γ with the x, y, and z axes, respectively, what is true about the direction cosines l, m, n?

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Q3.

What do direction ratios represent for a line in three-dimensional space?

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Q4.

If a line does not pass through the origin, how can we determine its direction cosines?

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